Wheel.



E. EIGUPERHAVEB @s YL GUINEE.

Patented Jau. s, um.y

UNITED STATES PATENT OFFICE.

`EIMOBQY'H, COPENHAVER, 0F' CALIFORNIA, AND WALTER COLVIN, 0F DUNLEVY,

, v PENNSYLVANIA. I

WHEEL.

l Specification of Letters Patent.

Patented aan. 3, 1911;

Application filed {uly 8, 1910. Serial No. 571,055.

To all whom it may concern: Be it known that we,` (1) EMORY H. COPENHAVER and (2)- WALTER CoLvIN, citizens of the United States of America, residing at (1) California and (2) Dunlevy, in the county of .Washington and State of Pennsylvania, have invented certain new and useful Improvements in VVheels,of which the following is a specification, reference being had therein to the accompanying drawing.

This invention is an improvement in our .patent for roller skates, No. 882,999 granted March 24th, 1908.

The present invention relates particularly to wheels for roller skates, and the object of our invention is to provide an anti-frictional' wheel consistin of comparatively few parts easily and quie ly assembled, inexpensive to manufacture, and when assembled providing a strong and durable wheel. p

We attain the above object by providing a wheel consisting of detachable hub sec-` tions which4 permit of the tire and movable parts of the wheel being quickly assembled. The movable parts, particularly the bearing surfaces thereof are hardened and are adapttheyare subjected by a roller skate in action.

Our invention will be hereinafter consid' ered in detail and then claimed, and reference will now be had to the drawing forming a .part of this specification, wherein there is illustrated a preferred embodiment of the invention,but vit is to be understood that the structural elements thereof can be varied or changed without departing from the spirit .of the appended claims.

In the drawing :-Figure '1 is a front elevation of a roller skate axle rovided with our improved wheels, the whee s being shown partly in elevation and partly in vertical section, Fig. 2 is a side elevation of one of the wheels, Fig.` 3 is a side elevation of-one ofthe hub sectlons, Fig. l is a cross sectional view of the same, Fig. 5 is a side elevation of another hub section, Fig. 6 is a cross sec- 1 tional view of the same, Fig. -7 is a front elevation of a lookin part of the wheel, view of the same, Fi 9 is an elevation of an inner nut adapte to form part of the wheel, and Fig. 10 is a vertical sectional view of the same.

ring adapted to4 form The reference numeral 1 denotes a roller ig. 8 isa cross sectional skate hanger or bearing and mounted in the hanger or bearing l is an axle 2 having the ends thereof exteriorly. threaded and provided with longitudinal fiat surfaces 3.

Our improved wheels are'carried by the.

threaded ends of the axle, and as the wheels are identical in construction, we deem it only' the axle 2. The nut 5 can be square, hexagon or any desired shape and its outer face 1s provided `with an annular groove or ball race 6 in which are adapted to revolve antifriction balls 7 The metallic cup-shaped ,washer is provided with a small port or opening 8 whereby a lubricant can be `in `jected into the'washer tof-lubricate andinsure an easy movement of the balls 7. Loosely mounted upon the axle 2' is a inner wheel section 9, said section being cut away, as at 10 to provide clearance for the nut 5, and the/annular vertical wall of the inner section 9 is cut away to provide an' annular ball race or groove 11 'adapted to receive the anti-friction balls 7 The inner 'wheel section 9 is provided upon the under side thereof with a hub 12, said hub being exteriorly screw threaded and having' the end thereof provided with a recess 13. The Vertical annular wall of vsaid recess is provided with an annular groove or ball race 14e for .anti-friction balls 15. The periphery of the inner wheel section 9 is cut away to providean annular rim or flange 16 adapted to coperate with an annular flange or rim 17, carried by an outer wheel' section 18,

said section being screwed upon the hub 12. `The flanges or rims 17 are adapted to fric` tionally hold a tire upon the wheel, the tirer being constructed of rubber or a similar resilient material and comprising an annular tongue 19 having va semi-cylindrical tread 20, said tread extending over the .peripheral edges of the flanges or rims 1`6 and 17 The 'outer face of the outer wheel section -18 is provided with an annular recess 21 adapted toreceive a locking ring 22, said ringscreWed upon the hub 12 to retain the. outer wheel section 18 thereon. The outer side of the locking ring 22 is provided with v diametrically disposed sockets 23 adapted to recelve a' Spanner wrench or suitable ins trument (not shown) that can be employed for rotating thelocking ring 22.l

Adapted toV screw upon the axle is an outer nut 24 having a groove or ball race similar to the nut 5 for retaining the antifriction balls 15 within the hub 12. Mounted againstthe outer face of the nut 24 is a cupshaped washer 25 similar to the washer 4,

Aand this cup-shaped washer is retained upon 27 are adapted to remain stationary relative to the axle, and the anti-friction balls 7 and 15 'are adapted to revolubly support the wheel sections 9 and 18 which are held inl 'engagement with the tire' by the locking ring 22. I

It is an extremely easy matter to renew the tires when they become worn or injured, and `by the proper application of a lubricant the wheels of a skate constructed in accordn ance' with our invention can be maintained in running order.

Having now descrlbed ourmvention what lwe claim as new, is i 1. In a wheel for roller skates, the com- A bination with an axle havin the 'ends thereof threaded, of an innerw eel section, said section having an exteriorly'threaded hub, an outer wheel adaptedy to' screw Aupon said hub, a resilient tire adapted to be-held by said wheel sections, a locking ringadapted to screw upon said hub for retainlng said sections together, anti-friction balls arranged in said inner wheel section, nuts screwed upon said axle and having rooved faces adapted to provide recesses or said balls, and cu -shapetl washers mounted upon said axle andl inclosin said nuts.

. 2.` In awheel for ro 1er skates, the combination with an axle having threaded ends,

of an inner 4wheel section loosely'mounted upon said axle, an exteriorly threaded hub carried by said inner wheel section, an outer wheel adapted to screw upon said hub, flanges carried by the peripheries of said sections, a tire mounted between said flanges a locking ring adapted to screw upon sai hub and hold said sections together, anti' friction balls arranged in said inner wheel section, nuts screwed upon said axle and adapted to retain said anti-friction balls within said section, and cup-shaped washers mounted uponsaid axle and in'closing said nuts, said'washers having openings formed therein adapted to facilitate'theflubrication of the said anti-friction balls.

In testimony whereof we aix our signatures in the presence of two witnesses.

EMORY H. COPENHAVER. WALTER COLVIN. Witnesses:

J. W. MATHIAS, ROBERT MCEWEN. 

